Abstract
The present invention relates to a method for transmitting a reference signal (RS) for measuring a channel in a downlink MIMO (Multi Input Multi Output) system that supports: a first user device supporting N base station transmission antennas out of a total of M base station transmission antennas and a second user device supporting M (M > N) base station transmission antennas. The method comprises the steps of: grouping a certain number of subframes or a resource block (RB) to transmit a common reference signal (CRS) for M transmission antennas from the base station; and transmitting the subframes or the resource block to the second user device. The grouped subframes or the resource block are transmitted to the second user terminal in a specific time period and in the subframes or the resource block the common reference signal is mapped to different transmission antennas ports corresponding to a quotient which is obtained by dividing M by a specific number.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 03/08/2011 | ISLD-201107-003 | LG | No | Family Member | ||||
| Not Available | 16/09/2012 | ISLD-201209-004 | LG | No | Family Member | ||||
| Not Available | 22/10/2012 | ISLD-201209-014 | LG | Yes | Family Member | ||||
| 4G | 30/09/2014 | ISLD-201410-002 | LG | Yes | Family Member | ||||
Specification Information
Specification Information
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Family Information
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| KR101689597B1 | Not Available | 22/10/2012 | ISLD-201209-014 | LG | Yes | Basis Patent | ||||
| KR101689597B1 | 4G | 30/09/2014 | ISLD-201410-002 | LG | Yes | Basis Patent | ||||
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| KR20100091095A | 4G | 30/09/2014 | ISLD-201410-002 | LG | Yes | Basis Patent | ||||
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| EP2395677B1 | ----- | ----- | ----- | ----- | ----- | ----- | ----- | |||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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